#! /bin/sh

echo 参数个数: $#
echo "echo \$@" $@
echo "echo \$*" $*
echo "cure pid: {$$}"
echo "last pid: {$!}"
echo "\$-: $-"
"""
test.sh "he 2 34 5"
参数个数: 1
echo $@ he 2 34 5
echo $* he 2 34 5
cure pid: {18780}
last pid: {}
$-: hB
"""